我有一個非常大的 xml 檔案，我需要根據特定標簽將其拆分為多個。XML 檔案是這樣的：
<xml>
<file id="13">
<head>
<talkid>2458</talkid>
<transcription>
<seekvideo id="645">So in college,</seekvideo>
...
</transcription>
</head>
<content> *** This is the content I am trying to save *** </content>
</file>
<file>
...
</file>
</xml>
我想提取每個檔案的內容并根據talkid保存。
這是我嘗試過的代碼：
import xml.etree.ElementTree as ET
all_talks = 'path\\to\\big\\file'
context = ET.iterparse(all_talks, events=('end', ))
for event, elem in context:
if elem.tag == 'file':
content = elem.find('content').text
title = elem.find('talkid').text
filename = format(title ".txt")
with open(filename, 'wb', encoding='utf-8') as f:
f.write(ET.tostring(content), encoding='utf-8')
但我收到以下錯誤：
AttributeError: 'NoneType' object has no attribute 'text'
uj5u.com熱心網友回復：
如果您已經在使用.iterparse()它更通用的是僅依賴事件：
import xml.etree.ElementTree as ET
from pathlib import Path
all_talks = Path(r'file.xml')
context = ET.iterparse(all_talks, events=('start', 'end'))
for event, element in context:
if event == 'end':
if element.tag == 'talkid':
title = element.text
elif element.tag == 'content':
content = element.text
elif element.tag == 'file' and title and content:
with open(all_talks.with_name(title '.txt'), 'w') as f:
f.write(content)
elif element.tag == 'file':
content = title = None
更新。在類似的問題@Leila詢問如何將所有<seekvideo>標簽中的文本寫入檔案而不是<content>檔案，所以這里有一個解決方案：
import xml.etree.ElementTree as ET
from pathlib import Path
all_talks = Path(r'file.xml')
context = ET.iterparse(all_talks, events=('start', 'end'))
for event, element in context:
if event == 'end':
if element.tag == 'file' and title and parts:
with open(all_talks.with_name(title '.txt'), 'w') as f:
f.write('\n'.join(parts))
elif element.text:
if element.tag == 'talkid':
title = element.text
elif element.tag == 'seekvideo':
parts.append(element.text)
elif element.tag == 'file':
title = None
parts = []
你可以幫助我的國家，查看我的個人資料資訊。
uj5u.com熱心網友回復：
試試這樣吧。。
問題是talkid是head標簽的子標簽而不是file標簽。
import xml.etree.ElementTree as ET
all_talks = 'file.xml'
context = ET.iterparse(all_talks, events=('end', ))
for event, elem in context:
if elem.tag == 'file':
head = elem.find('head')
content = elem.find('content').text
title = head.find('talkid').text
filename = format(title ".txt")
with open(filename, 'wb') as f: # 'wt' or just 'w' if you want to write text instead of bytes
f.write(content.encode()) # in which case you would remove the .encode()
uj5u.com熱心網友回復：
您可以使用Beautiful Soup來決議 xml。
它會這樣（我在 xml 中添加了第二個談話 id 以演示查找多個標簽）
xml_file = '''<xml>
<file id="13">
<head>
<talkid>2458</talkid>
<transcription>
<seekvideo id="645">So in college,</seekvideo>
...
</transcription>
<talkid>second talk id</talkid>
</head>
<content> *** This is the content I am trying to save *** </content>
</file>
<file>
...
</file>
</xml>'''
from bs4 import BeautifulSoup
soup = BeautifulSoup(xml_file, "xml")
first_talk_id = soup.find('talkid').get_text()
talk_ids = soup.findAll('talkid')
print(first_talk_id)
# prints 2458
for talk in talk_ids:
print(talk.get_text())
# prints
# 2458
# second talk id
注意：例如，您需要為 bs4 安裝決議器才能使用 xml
pip install lxml。
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標籤：Pythonxml
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